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公开(公告)号：WO2021119798A1
公开(公告)日：2021-06-24
申请号：PCT/CA2020/000142
申请日：2020-12-18
发明人： PURDY, Clay , WEISSENBERGER, Markus , GORDOS, Cora
IPC分类号： C09K8/74 , E21B43/22 , C09K2208/32 , C09K8/528
摘要： An aqueous modified or synthetic acid composition comprising: an acid; a first component comprising: an amine and a carboxylic acid group; a second component comprising: an amine and a sulfonic acid group; wherein said first component and said acid are present in a molar ratio ranging from 1:3 to 1:15, more preferably from 1:3 to 1: 12.5. Said acid composition is preferably used in acidizing or stimulating dolomite formations. Disclosed also are methods involving the use of said acid composition.
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公开(公告)号：WO2020124195A1
公开(公告)日：2020-06-25
申请号：PCT/CA2019/000170
申请日：2019-12-16
发明人： PURDY, Clay , WEISSENBERGER, Markus
摘要： An inhibition corrosion package for use with an acidic composition, where the package comprises a dialdehyde-containing hydrocarbon component; at least one surfactant; optionally, a propargyl alcohol or derivative thereof; and a solvent. Also disclosed are acidic compositions combining the corrosion inhibition package according to a preferred embodiment of the present invention for use in various industrial operations including but not limited to oil and gas operations. Also disclosed are methods of use of such compositions.
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公开(公告)号：WO2019213741A1
公开(公告)日：2019-11-14
申请号：PCT/CA2019/000068
申请日：2019-05-10
发明人： PURDY, Clay , WEISSENBERGER, Markus
摘要： A method for the fracking or stimulation of a hydrocarbon-bearing formation, said method comprising the steps of: providing a wellbore in need of stimulation; inserting a plug in the wellbore at a predetermined location; inserting a perforating tool and a spearhead or breakdown acid into the wellbore; positioning the tool at said predetermined location; perforating the wellbore with the tool thereby creating a perforated area; allowing the spearhead acid to come into contact with the perforated area for a predetermined period of time sufficient to prepare the formation for fracking or stimulation; removing the tool form the wellbore; and initiating the fracking of the perforated area using a fracking fluid. Also disclosed is a corrosion inhibiting composition for us with the acid composition.
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公开(公告)号：WO2019095035A1
公开(公告)日：2019-05-23
申请号：PCT/CA2018/000220
申请日：2018-11-14
发明人： PURDY, Clay , WEISSENBERGER, Markus
摘要： An aqueous caustic composition comprising: a caustic component; an alkanolamine additive adapted to provide an extended buffering effect to the caustic composition when such is exposed to acid; and water. Uses and methods of using such compositions are also disclosed.
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公开(公告)号：WO2018098559A1
公开(公告)日：2018-06-07
申请号：PCT/CA2017/000256
申请日：2017-11-30
发明人： PURDY, Clay , WEISSENBERGER, Markus
摘要： An inhibition corrosion package for use with an acidic composition, where the package comprises a terpene component; a propargyl alcohol or derivative thereof; at least one amphoteric surfactant; and a solvent. Also disclosed are acidic compositions combining the corrosion inhibition package according to a preferred embodiment of the present invention for use in various industrial operations including but not limited to oil and gas operations. Also disclosed are methods of use of such compositions.
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6.发明申请SYNTHETIC ACID COMPOSITIONS ALTERNATIVES TO CONVENTIONAL ACIDS IN THE OIL AND GAS INDUSTRY 审中-公开石油和天然气工业中常规酸的合成酸组成
公开(公告)号：WO2016049742A1
公开(公告)日：2016-04-07
申请号：PCT/CA2015/000515
申请日：2015-09-29
发明人： PURDY, Clay , THATCHER, Darren , GARNER, John , ULMER, Bruce
摘要： A synthetic acid composition for use in oil industry activities, said composition comprising: urea and hydrogen chloride in a molar ratio of not less than 0.1:1; and an amino acid, and optionally, a phosphonic acid derivative.
摘要翻译： 一种用于石油工业活性的合成酸组合物，所述组合物包含：摩尔比不小于0.1:1的脲和氯化氢; 和氨基酸，以及任选的膦酸衍生物。
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7.发明申请
公开(公告)号：WO2016049739A1
公开(公告)日：2016-04-07
申请号：PCT/CA2015/000512
申请日：2015-09-29
发明人： PURDY, Clay , THATCHER, Darren , GARNER, John , ULMER, Bruce
CPC分类号： C09K8/72 , C09K8/528 , C09K8/74 , C09K2208/02 , C09K2208/32 , C23F11/04 , C23F15/00 , C23G1/08
摘要： A synthetic acid composition for use in oil industry activities, said composition comprising: urea and hydrogen chloride in a molar ratio of not less than 0.1 : 1 and formic acid or a derivative thereof.
摘要翻译： 一种用于石油工业活性的合成酸组合物，所述组合物包含：摩尔比不小于0.1:1的尿素和氯化氢以及甲酸或其衍生物。
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8.发明申请USING SYNTHETIC ACID COMPOSITIONS AS ALTERNATIVES TO CONVENTIONAL ACIDS TN THE OIL AND GAS INDUSTRY 审中-公开使用合成酸组合物作为常规酸的替代品，油气工业
公开(公告)号：WO2015179954A1
公开(公告)日：2015-12-03
申请号：PCT/CA2015/000346
申请日：2015-05-28
发明人： PURDY, Clay , THATCHER, Darren , GARNER, Jon , ULMER, Bruce
CPC分类号： C09K8/528 , C09K8/52 , C09K8/54 , C09K8/68 , C09K8/72 , C09K8/74 , C09K8/86 , C09K2208/02 , C09K2208/20 , C09K2208/22 , C09K2208/32 , C23F11/04 , E21B31/00 , E21B37/00 , E21B37/06 , E21B43/16 , E21B43/26
摘要： A synthetic acid composition for use in oil industry activities, said composition comprising: urea and hydrogen chloride in a molar ratio of not less than 0.1:1; a metal iodide or iodate; an alcohol or derivative thereof. Optionally, formic acid or a derivative thereof; propylene glycol or a derivative thereof, ethylene glycol glycerol or a mixture thereof; cinnamaldehyde or a derivative thereof; and a phosphonic acid derivative can be added to the composition.
摘要翻译： 一种用于石油工业活性的合成酸组合物，所述组合物包含：摩尔比不小于0.1:1的脲和氯化氢; 金属碘化物或碘酸盐; 酒精或其衍生物。 任选地，甲酸或其衍生物; 丙二醇或其衍生物，乙二醇甘油或其混合物; 肉桂醛或其衍生物; 并且可以向组合物中加入膦酸衍生物。
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公开(公告)号：WO2022160033A1
公开(公告)日：2022-08-04
申请号：PCT/CA2022/000001
申请日：2022-01-27
摘要： An aqueous acidic CIP composition comprising: an acidic component; a surfactant; and an organic solvent; wherein said composition has an advancing contact angle (θΑ) of less than 80 degrees and a receding contact angle (θR) of less than 20 degrees.
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公开(公告)号：WO2020198839A1
公开(公告)日：2020-10-08
申请号：PCT/CA2020/000045
申请日：2020-04-03
摘要： A mud acid composition for use in the oil and gas industry is prepared by mixing: (i) an inhibited hydrofluoric acid composition comprising (a) hydrofluoric acid, and (b) an alkanolamine such as monoethanolamine, wherein the molar ratio of alkanolamine:HF is at least 1:1; and (ii) an acid having a pKa value of less than 3, for example HC1. The addition of the acid (ii) to the inhibited hydrofluoric acid composition (i) restores the ability of the HF to acidize sandstone formations and to dissolve silica or silicate deposits. The inhibited hydrofluoric acid composition is less corrosive, and thus safer to use, than aqueous HF.
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